diff options
| -rw-r--r-- | libavcodec/vc1.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/libavcodec/vc1.c b/libavcodec/vc1.c index f20b946be6..6557724954 100644 --- a/libavcodec/vc1.c +++ b/libavcodec/vc1.c @@ -122,12 +122,16 @@ static int bitplane_decoding(uint8_t* data, int *raw_flag, VC1Context *v) case IMODE_NORM2: if ((height * width) & 1) { *planep++ = get_bits1(gb); - offset = 1; + y = offset = 1; + if (offset == width) { + offset = 0; + planep += stride - width; + } } else - offset = 0; + y = offset = 0; // decode bitplane as one long line - for (y = offset; y < height * width; y += 2) { + for (; y < height * width; y += 2) { code = get_vlc2(gb, ff_vc1_norm2_vlc.table, VC1_NORM2_VLC_BITS, 1); *planep++ = code & 1; offset++; |